[Home][2016 Index] Re: [TCML] Flyback cooling [Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [TCML] Flyback cooling

I've dunked a few in oil. PVC pipe for a container and mineral oil. I used epoxy and brass bolts for the connection. In order to not explode when it gets hot you need a fair amount of expansion room or a vent. So they wind up fairly large. Most likely you are better off just getting a flyback that is big enough to handle the demand. Have you tried forced air cooling with a duct?


On 12/27/2016 8:45 PM, Scott Bogard wrote:
Hey all,
      So I find myself in an interesting dilemma. I purchased some low cost
flyback transformers online, and I coupled them with some low cost ZVS
drivers (for induction heating, so two inductors and a single primary
instead of one inductor and a split primary) and low cost meanwell power
supplies, for driving my plasma tubes. The results are actually quite nice
for my purposes, a really low cost complete system that takes me mere
minutes to assemble, and costs me a tenth of what I'd have spent for a
ready built unit of comparable power.

Here's my issue, my flyback gets really hot. It doesn't seem to catch fire
or anything, and I have some air blowing over it (mostly to cool the ZVS
inductors which get absurdly hot otherwise), but I'm noticing my output
drops after a few hours of continuous operation. So I'm looking for
suggestions to cool it. I tried heatsinking, but eddy currents (or corona
to the aluminum heatsink maybe?) made it get hot much faster. Anyone know
of a clean way to pot it in oil maybe using PVC? I'm looking for simple
solutions, that require very little work and expense, and will be mess
proof when finished. I could always get a bigger flyback, but again, trying
to save on cost, and these ones are so nice and compact.

Thanks in advance guys!
Scott D. Bogard.
Tesla mailing list

Tesla mailing list